.page-about {
  --about-soft: rgba(214, 232, 242, .78);
  --about-soft-dim: rgba(214, 232, 242, .58);
  --about-shadow: 0 20px 44px -32px rgba(11, 30, 45, .55);
  --about-gold-ink: #8A6620;
  background: var(--paper);
  color: var(--ink);
}

.page-about .about-crumbs {
  padding-top: 22px;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  margin-top: 14px;
  padding: 36px 0 44px;
  color: var(--ice-050);
  background:
    radial-gradient(115% 90% at 88% 6%, rgba(111, 168, 199, .42), transparent 62%),
    linear-gradient(168deg, var(--ice-700) 0%, var(--ice-900) 76%);
  border-radius: var(--radius-lg);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: -140px;
  right: -90px;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(200, 155, 60, .38), transparent 68%);
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(115deg, rgba(214, 232, 242, .06) 0 1px, transparent 1px 26px);
  pointer-events: none;
}

.page-about .about-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 30px;
}

.page-about .about-hero .eyebrow {
  color: var(--gold-400);
}

.page-about .about-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(29px, 6.4vw, 50px);
  line-height: 1.16;
  letter-spacing: .005em;
  color: #fff;
}

.page-about .about-hero .lede {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--about-soft);
  background: none;
  padding: 0;
}

.page-about .about-hero__points {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-about .about-hero__points li {
  padding: 6px 14px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--ice-100);
  background: rgba(11, 30, 45, .32);
  border: 1px solid rgba(214, 232, 242, .26);
  border-radius: var(--radius-pill);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-top: 26px;
}

.page-about .about-hero__link {
  color: var(--gold-400);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(228, 185, 91, .5);
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

.page-about .about-hero__link:hover {
  color: var(--gold-100);
  border-color: var(--gold-100);
}

.page-about .about-hero__figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(214, 232, 242, .2);
  background: linear-gradient(180deg, rgba(30, 90, 122, .5), rgba(11, 30, 45, .7));
  box-shadow: var(--about-shadow);
}

.page-about .about-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 9 / 7;
  object-fit: cover;
}

/* ---------- 通用区块 ---------- */
.page-about .about-section {
  padding: 46px 0;
}

.page-about .section-title {
  margin-top: 12px;
}

/* ---------- 起点 ---------- */
.page-about .about-why {
  display: grid;
  gap: 22px;
}

.page-about .about-why__lead {
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.page-about .about-why__body p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.82;
  color: var(--ink-500);
}

.page-about .about-why__body p:last-child {
  margin-bottom: 0;
}

.page-about .about-callout {
  padding: 18px 20px;
  border-left: 3px solid var(--gold-400);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: var(--gold-100);
  color: var(--about-gold-ink) !important;
  font-size: 15px !important;
  line-height: 1.78 !important;
}

/* ---------- 整理工序 ---------- */
.page-about .about-flow {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-about .about-flow__item {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  column-gap: 14px;
  row-gap: 8px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .about-flow__idx {
  grid-column: 1;
  grid-row: 1 / -1;
  align-self: start;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--gold-600);
}

.page-about .about-flow__body {
  grid-column: 2;
}

.page-about .about-flow__body h3 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--ice-700);
}

.page-about .about-flow__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-500);
}

.page-about .about-flow__meta {
  grid-column: 2;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--ice-500);
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  display: grid;
  gap: 26px;
  margin-top: 28px;
}

.page-about .about-team__figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--ice-100);
  box-shadow: var(--about-shadow);
}

.page-about .about-team__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-team__tabs .tabs__panel {
  padding-top: 18px;
}

.page-about .about-team__tabs .tabs__panel h3 {
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-size: 20px;
  line-height: 1.4;
  color: var(--ice-700);
}

.page-about .about-team__tabs .tabs__panel p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-500);
}

.page-about .about-tags {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-about .about-tags li {
  padding: 5px 13px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--about-gold-ink);
  background: var(--gold-100);
  border: 1px solid rgba(200, 155, 60, .34);
  border-radius: var(--radius-pill);
}

/* ---------- 发展历程 ---------- */
.page-about .about-timeline {
  position: relative;
  margin-top: 30px;
  padding-left: 26px;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--ice-500), var(--gold-400) 58%, var(--ice-300));
}

.page-about .about-timeline__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-timeline__item {
  margin-bottom: 14px;
}

.page-about .about-timeline__item:last-child {
  margin-bottom: 0;
}

.page-about .about-node summary {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 6px 12px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  transition: border-color .22s var(--ease), box-shadow .22s var(--ease);
}

.page-about .about-node summary::-webkit-details-marker {
  display: none;
}

.page-about .about-node summary::marker {
  content: "";
}

.page-about .about-node summary::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 21px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--gold-400);
  box-shadow: 0 0 0 4px rgba(228, 185, 91, .22);
  transition: background .22s var(--ease), box-shadow .22s var(--ease);
}

.page-about .about-node summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1;
  color: var(--ice-500);
}

.page-about .about-node summary:hover {
  border-color: var(--ice-300);
  box-shadow: var(--about-shadow);
}

.page-about .about-node[open] summary::before {
  background: var(--gold-600);
  box-shadow: 0 0 0 6px rgba(200, 155, 60, .18);
}

.page-about .about-node[open] summary::after {
  content: "–";
}

.page-about .about-node__when {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .03em;
  white-space: nowrap;
  color: var(--about-gold-ink);
}

.page-about .about-node__title {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ice-700);
}

.page-about .about-node__body {
  padding: 12px 18px 6px;
}

.page-about .about-node__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-500);
}

.page-about .about-history__figure {
  margin: 30px 0 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line-soft);
}

.page-about .about-history__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-history__figure .frame__caption {
  padding: 12px 18px;
  background: #fff;
}

/* ---------- 读者数据 ---------- */
.page-about .about-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 28px;
}

.page-about .about-metrics__item {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 22px 20px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}

.page-about .about-metrics__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--gold-400), rgba(228, 185, 91, 0));
}

.page-about .about-metrics__num {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(30px, 8vw, 42px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.01em;
  color: var(--ice-700);
}

.page-about .about-metrics__num small {
  margin-left: 4px;
  font-size: .4em;
  font-weight: 600;
  color: var(--ice-500);
}

.page-about .about-metrics__label {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
}

.page-about .about-metrics__note {
  font-size: 12px;
  line-height: 1.7;
  color: var(--ink-500);
}

/* ---------- 持续更新 ---------- */
.page-about .about-promise__inner {
  position: relative;
  overflow: hidden;
  padding: 34px 24px;
  color: var(--ice-050);
  background: linear-gradient(152deg, var(--ice-700), var(--ice-900) 78%);
  border-radius: var(--radius-lg);
}

.page-about .about-promise__inner::after {
  content: "";
  position: absolute;
  bottom: -150px;
  left: -110px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(228, 185, 91, .26), transparent 70%);
  pointer-events: none;
}

.page-about .about-promise__inner > * {
  position: relative;
  z-index: 1;
}

.page-about .about-promise__inner .eyebrow {
  color: var(--gold-400);
}

.page-about .about-promise__inner h2 {
  margin: 12px 0 0;
  font-family: var(--font-serif);
  font-size: clamp(22px, 4.4vw, 32px);
  line-height: 1.3;
  color: #fff;
}

.page-about .about-promise__text {
  margin: 16px 0 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.82;
  color: var(--about-soft);
}

.page-about .about-promise__list {
  list-style: none;
  display: grid;
  gap: 12px;
  margin: 24px 0 0;
  padding: 0;
}

.page-about .about-promise__list li {
  padding: 14px 16px 14px 36px;
  position: relative;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ice-100);
  background: rgba(11, 30, 45, .3);
  border: 1px solid rgba(214, 232, 242, .2);
  border-radius: var(--radius-md);
}

.page-about .about-promise__list li::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 22px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold-400);
}

.page-about .about-promise__inner .btn {
  margin-top: 26px;
}

/* ---------- 入口 ---------- */
.page-about .about-next__links {
  list-style: none;
  display: grid;
  gap: 12px;
  margin: 24px 0 0;
  padding: 0;
}

.page-about .about-next__links a {
  display: block;
  padding: 18px 20px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ice-700);
  text-decoration: none;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  transition: border-color .22s var(--ease), transform .22s var(--ease), box-shadow .22s var(--ease);
}

.page-about .about-next__links a:hover {
  border-color: var(--ice-500);
  transform: translateY(-2px);
  box-shadow: var(--about-shadow);
}

.page-about .about-next__links span {
  display: block;
  margin-top: 7px;
  font-size: 13px;
  font-weight: 400;
  line-height: 1.7;
  color: var(--ink-500);
}

/* ---------- 显现动效 ---------- */
.page-about [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}

.page-about [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .page-about [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---------- 断点 ---------- */
@media (min-width: 760px) {
  .page-about .about-section {
    padding: 68px 0;
  }

  .page-about .about-hero {
    margin-top: 20px;
    padding: 52px 0 58px;
  }

  .page-about .about-flow__item {
    grid-template-columns: 64px minmax(0, 1fr) 210px;
    align-items: baseline;
  }

  .page-about .about-flow__body {
    grid-column: 2;
  }

  .page-about .about-flow__meta {
    grid-column: 3;
    text-align: right;
    align-self: center;
  }

  .page-about .about-next__links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-about .about-promise__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-promise__inner {
    padding: 48px 44px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    align-items: center;
    gap: 46px;
  }

  .page-about .about-why {
    grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
    gap: 44px;
    align-items: start;
  }

  .page-about .about-why__lead {
    padding-bottom: 0;
    border-bottom: 0;
    position: sticky;
    top: 24px;
  }

  .page-about .about-team {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: 42px;
    align-items: start;
  }

  .page-about .about-metrics {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
  }

  .page-about .about-timeline {
    padding-left: 32px;
  }

  .page-about .about-node summary::before {
    left: -32px;
  }
}
<<<END>>>